Slug-casting machine.



D. S. KENNEDY.

SLUG CASTING MACHINE.

APPLICATION FILED JULY 2.1915.

'Lw'fiflwfim Patented Oct. 26, 1915.

3 SHEETS-SHEET I.

5 woe W601 1% Q; mom a 3 {117 x Mv/84v1 D. S. KENNEDY.

- SLUG CASTING MACHINE.

APPLICATION FILED JULY 2,1915.

Patented. Oct. 26, 1915.

3 SHEETSSHEET 2.

D. S. KENNEDY.

SLUG CASTING MACHINE.

APPLICATION FILED JULY 2.19I5. Llfiwfififi I Patented. 0ct. 26,1915.

3 SHEETS-SHEET 3.

OFFTWM.

DAVID S. KENNEDY, O15 BROOKLYN, NEW YORK, ASSIGNOJR. TO MERGENTHALER' LINOTYIPE COMPANY, A CORPORATION OF NEW YORK.

SLUG-CASTING Macmn'n.

Application filed July 2, 1915.

To all whom it may concern:

Be itgknown that I, -DAVID S. KENNEDY, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York. have invented certain new and useful Improvements in Slug-Casting Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to typographical machines, such as linotype machines of the general organization re resented in United States Letters Patent to Mergentha-ler, No. 436532, wherein circulating matrices are released from a magazine in the order in which their characters are to appear in print and then assembled in line, the composed line transferred to the face of a slotted mold, the mold filled with molten metal to form a slug or linotype against the matrices which produce the type characters thereon, and the matrices thereafter returned through a distributing mechanism to the magazine from which they started. After casting, the mold is brought opposite an ejector which advances from the rear and pushes the slug before'it between a pair of trimming knives and into a receiving gal-' ley therebeyond. In these machines, the mold is commonly made adjustable in order to produce slugs of different sizes or thicknesses, and the knives are similarly made adjustable to correspond. It frequently happens, however, that the operator will fail to effect the corresponding adjustment of these parts, and thus bring about their injury or the imperfect trimming of the slugs. This objection becomes quite serious when the machine is equipped with thick or heavy ejector blades, which would strike the knives if their adjustment is such as to prevent the free passage of the blades therebetween.

It is the aim of my present invention to avoid the above objections, and to this end means are provided whereby the operation of the machine will be arrested when the distance between the knives is less than the width of the mold slot or the thickness of the ejector blade in use.

In the accompanying drawings, I have shown my invention merely in preferred form and by way of example, and as applied to a linotype machine of the classstated. however, many variations and alterations Specification of Letters Patent.

. spirit.

Patented Oct. ac, iaia.

Serial No. 37,t66.

maybe made therein and in its mode of application which will be comprised within its Therefore, I desire it to be understood that I do not limit myself to any specific form or embodiment, except in so far as such limitations are specified in the claims.

Referring to the drawings: Figure l is a side elevation of a portion of a linotype machine having my invention applied thereto; F 1g. 2 is a. section on the line 22 of Fig. 1; Fig. 3 is a. perspective skeleton of the parts with which my invention is directly concerned; Fig. 4 is a detail; Figs. 5 and 6 are sections of a modification; and Fig. 7 is a erspective of the adjustable mold detached.

The mold A, wherein the slugs are cast, is carried by the disk B, which is rotatably mounted upon the slide B so as to present the mold first in a horizontal position for casting, and subsequently to locate it in the vertical position shown in Figs. 1 and 2, where it stands in front of the ejector blade C, which advances from the rear and pushes the slug before it between the pair of trimming knives D and I) and through the port E in the framework into the receiving galley F at the'front of the machine. It may be stated that when the disk B presents the mold in its horizontal and vertical positions, it is moved forwardly by the slide B so as in the one case to press the mold tightly against the matrix line, and in the other case to locate it in close proximity to the trimming knives. The foregoing parts and their mode of operation are well understood in the art and require no further explanation here.

The mold A comprises, as usual, a body portion A and a cap A constituting the side walls of the mold slot, and the two intermediate liners A and A, constituting the opposite ends of the slot. When it is desired to change the width of the mold slot, theliners are removed'and replaced by others of a different thickness. This construction of mold is well known and is illustrated for example in United States Letters Patent to Bates, No. ($18,554:.

The knife D is stationary, while the knife D is adjustable laterally toward and-from it, in order to vary the distance between them to correspond to the size of the mold slot. This adjustment is effected by the longitudinally movable wedge D cooperating the parts which might result from this failure, means are provided for arresting the operation of the machine whenever the mold and trimming knives are in such improper adjustment with respect to each other. In one of the forms shown, such means" comprise a vertical lever or member H pivotally connected at H to a block H fastened rigidly to the movable knife D. The lower arm-or portion H of the lever H is formed with an extended lip or projection H arranged in engagement with the forward end ofthe bar J which, is connected at its rear end to the elbow lever J controlling the main driving clutch J of the machine. The bar J is the one ordinarily'operated by the vise-automatic, but in the present instance the latter, marked M in the drawing and shown in Fig. 3, acts through the lever M upon the underlying bar M also connected to the clutch lever J and manually operated in the ordinary way by the starting handle M For a fuller description of the clutch mechanism referred to, reference may be had to the Rogers U. S. Patent No. 661,386. i

The effect of the above arrangement is that when the lever H is rocked about its pivot, the bar J will be pushed rearwardly and cause the disengagement of the main driving clutch'in the usual manner. rocking of the lever His effected when the mold and knives are in improper relative adjustment, as now to be described. Referring particularly to Figs. 2 and 3, it will be noted that the form of the cap portion A of the mold (this being its usual form) is such as to leave at the front a relatively thin lip or strip A and a longitudinal notch or recess A to one side thereof. To utilize this particular. form of mold cap, the point of attachment of'the lever H to the movable knife D is so selected that when the cutting edge of the'knife is in transverse alinement with the inner face of the cap, the lever will stand opposite the notch A and be permitted to enter it as the mold is moved forwardly to'ejecting position, as shown in Fig. 2. When, however, the knife D is in improper position, the lever H will be engaged by the lip A of the mold cap and be rocked about its pivot 'to disengage the driving clutch of the machine, in the manner illustrated in Fig. 3.

Such

In Figs. 5 and 6, the movable knife D is shown as provided with a relatively fixed member K which is adapted to be engaged by the lip A of the mold cap when the knife is in improper position. In this modification, the advance of the mold is positively prevented by the engagement of thelip A will be obvious that many changes and variations will suggest themselvesto the skilled mechanic without departure from. its scope. It will also be obvious that the invention is not restricted to the particular adaptation described, as it may be employed in any case where it is desired to arrest the operation of the machine when the adjustment of the trimming knives does not correspond to the size of the mold in use. For instance, it is common in the commercial linotype machines to equip the mold disk with a plurality of molds of different sizes, and to adjust the disk to bring any selected one of them into operative position. It will be apparent that my improved devices may be employed in connection with such interchangeable molds as well as to a single ad justable mold as shown herein. It will also be apparent that there are various other types of mold and slug trimming mechanism known in the art to which my invention mav be falpplied.

aving thus described my invention, its construction and mode of operation, what I claim and desire to secure by Letters Patent of the United States, is as follows:

1. In a slug casting machine, the combination of an adjustable mold, adjustable trimming mechanism, and automatic means for arresting the operation of the machine.

when said parts are in improper adjustment with respect to each other.

2. In a slug casting machine, the combination of a slotted mold adjustable to vary the width of the slot, a pair of trimming knives, one adjustable laterally toward and from the other to vary the distance between them to correspond to-the width of the mold slot, and automatic means for arresting the operation of the machine when the distance between the knives is less than the width of the mold slot.

wmee ing the operation of the machine when the distance between the knives is less than the width of the mold slot.

4. In a slugcasting machine, the combination of anadjustable mold, adjustable slug trimming mechanism, and means controlled by the mold for arresting the operation of the machine when said parts are in improper adjustment with respect to each other.

5. In a slug casting machine, the combination of a mold wherein the slug is cast,

an ejector for removing the slug from the mold, adjustable trimming knives between which the slug is pushed by the ejector, and means to prevent the operation of the ejector when its thickness is greater than the distance between the knives.

6. In a slug casting machine, the combination of a mold, trimming knives adjustable to correspond with the size of-the mold, and automatic means for arresting the operation of the machine when the mold and knives are in improper relative adjustment, the said means comprising a member carried by one of the knives and adapted to be engaged by the mold.

7. In a slug casting machine, the combination of a slotted mold, a pair of trimming knives, one adjustable laterally toward and from the other to correspond with the width of the mold slot, and automatic means for arresting the operation of the machine when the distance between the knives is less than the width of the mold slot, the said means comprising a member carried by the-adjustabliedlmife and adapted to be engaged by the mo 8. In a.slug casting machine, the combination of a mold, trimming knives adjustable to correspond to the size of the mold, and automatic means for arresting the operation of the machine when the mold and knives are in improper relative adjustment, the said means comprising a movable member attached to one of the knives and adapted to be actuated by its engagement with the mold, and connections whereby the movement of said member will disengage the driving clutch of the machine.

9. In a slug casting machine, the combination of a slotted mold, a pair of trimming knives, one adjustable laterally toward and from the other to correspond with the width of the mold slot, and automatic means for arresting the operation of the machine when the distance between the knives is less than the width of the mold slot, the said means comprising a relatively movable member carried by the adjustable knife and adapted to be actuated by engagement with the mold, and connections whereby the movement of said member disengages the driving clutch of the machine.

10. In a slug casting machine, the combination of a. slotted mold wherein the slug is cast, an ejector to remove the slug from the mold, a pair of trimming knives between which the slug is pushed by the ejector, one of which knives is adjustable laterally toward-and from the other to correspond to the width of the mold slot, and means for preventing the operation of the ejector when the distance between the knives is less than signature in presence of two witnesses.

DAVID S. KENNEDY.

Witnesses:

ALFRED W. F. GUEST, MARY BRANDT. 

